Abstract: Lifeboat in the general form of a hollow prolate spheroid having a hatchway opening in the upper portion and a weighted keel in the lower portion. The lifeboat comprises a main body having inner and outer skins spaced apart in a parallel relationship and a hollow ballast element extends entirely around the periphery of the inner chamber at the bottom and is divided by transverse walls into a plurality of fresh water compartments which also has a flat upper surface for use as a seat. The ballast element also includes a water compartment beneath the floor at the bottom portion of the inner chamber.

Abstract: Nozzle for use with a non-aspirated fire-fighting medium capable of a selection of two rates of flow and two modes of spray control.